不同成因类型致密砂岩气成藏过程及机理研究进展 |
| |
引用本文: | 孙丽娜,张明峰,吴陈君,王自翔,熊德明,妥进才. 不同成因类型致密砂岩气成藏过程及机理研究进展[J]. 沉积学报, 2015, 33(5): 1013-1022. DOI: 10.14027/j.cnki.cjxb.2015.05.017 |
| |
作者姓名: | 孙丽娜 张明峰 吴陈君 王自翔 熊德明 妥进才 |
| |
作者单位: | 1.甘肃省油气资源研究重点实验室/中国科学院油气资源研究重点实验室 兰州 730000; |
| |
基金项目: | 甘肃省重点实验室专项,国家重点基础研究发展计划(973计划)项目 |
| |
摘 要: | 根据前人大量的研究成果,总结了致密砂岩气成藏过程和机理的研究进展。根据成因将其分为致密常规、致密深盆和致密复合砂岩气藏。致密深盆气和常规致密气成藏过程分别为:储层致密化→气体充注→聚集成藏、烃源岩生排烃→运聚成藏→储层致密化→构造改善。而致密常规和深盆砂岩气在构造叠合作用下则形成致密复合砂岩气藏。常规油气藏的背斜、断层、水动力等封闭机理适用于常规致密砂岩气藏。致密深盆砂岩气成藏机理包括水体封闭、上浮受阻、侧向断层-垂向页岩封闭、地层-成岩作用复合封闭、动态平衡圈闭和驱动压差等成藏封闭机理。其中,学者们较为公认的是动态平衡封闭机理。这种机理实质上为力学平衡与物质平衡共同作用下的动态圈闭系统,但仍存在某些方面的不确定性。所以为了更清晰地认识与研究不同地区致密砂岩气成藏机制,结合实际地质演化的特殊性进行综合判断将为其勘探开发提供一定的理论依据与指导。
|
关 键 词: | 低孔低渗 致密砂岩气 成藏过程 深盆气 封闭机理 |
收稿时间: | 2014-09-01 |
A Review of the Accumulation Process and Formation Mechanism about Different Genetic Types of Tight-Gas Sandstone Reservoir |
| |
Affiliation: | 1.Key Laboratory of Petroleum Resources, Gansu Province/ Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000;2.University of Chinese Academy of Sciences, Beijing 100049 |
| |
Abstract: | According to a large number of previous studies, we summarized the research progress of tight sandstone gas reservoir formation process and mechanism. Under its genetic classification, it was divided into conventional tight sandstone reservoir, deep basin tight sandstone reservoir and composite tight sandstone reservoir by its genetic classification. Their accumulation process was hydrocarbon generation → accumulation → densified → structure improved, densified → gas charge → accumulation and conventional reservoir→ densified →deep basin tight sandstone reservoir → accumulation compounded, respectively. Currently the conventional tight sandstone reservoir accumulation mechanism had been studied deeply. But the deep basin accumulation mechanism was studied at all the time. As we have known, it contained the following six general mechanism, water block, lack of buoyancy, fault block, straitigraphic-diagenetic, driving pressure differential and dynamic balance. Although among them the dynamic balance was widespread accepted, it all had deficiencies. So, considering the practical situation of geology is very important. And then we can understand and research different areas of tight sandstone gas reservoirs clearly to provide theoretical guidance for its exploration and development. |
| |
Keywords: | low porosity and low permeability tight sandstone reservoir accumulation process deep basin gas accumulation mechanism |
本文献已被 CNKI 万方数据 等数据库收录! |
| 点击此处可从《沉积学报》浏览原始摘要信息 |
|
点击此处可从《沉积学报》下载全文 |
|